ABB M4M 20 User Manual page 21

M4M 20 NETWORK ANALYZER USER MANUAL
21
Wiring diagrams - M4M 20, M4M 20 Modbus, M4M 20 Ethernet, M4M 20 I/O, M4M 20
Profibus, M4M 20 Bacnet, M4M 20-M Modbus, M4M 20-M Ethernet
The M4M 20 can be used on different type of network (please refer to chapter "7.First commissioning" for
the configuration on the device).
According to the type of network that has been chosen, the parameters visualized on the device HMI
change.
Below the wiring diagrams for M4M 20 working with CT .../5A or .../1A (M4M 20, M4M 20 Modbus, M4M
20 Ethernet, M4M 20 I/O, M4M 20 Profibus, M4M 20 Bacnet, M4M 20-M Modbus, M4M 20-M Ethernet) are
shown:
• 3-phase 4-wire network with 3CTs ok for MID on N4M 20-M
• 3-phase 4-wire network with 1CT
• 3-phase 3-wire network with 1CT
• 3-phase 3-wire network with 3CTs
• 3-phase 3-wire network with 2CTs ok for MID on N4M 20-M